12 power supply recomendations for penta sata hat

Hi,
I have set up a NAS using a raspberry pi 4 hdd and a penta sata hat.

Following the documentation here

I purchase a random 6A 12V power supply form amazon.

I have a lot of instability issues with the drives and random IO errors.

Seems to be an issue with the low quality power supply since I have no issues if I plug the HAT to my computer power supply with the 12V 4 pin connector.

Can someone recommend a quality 6A power supply to use here?